diff --git a/source/dub/compilers/compiler.d b/source/dub/compilers/compiler.d
index 45f064e..9cc0676 100644
--- a/source/dub/compilers/compiler.d
+++ b/source/dub/compilers/compiler.d
@@ -57,7 +57,7 @@
 	}
 	static immutable SpecialFlag[] s_specialFlags = [
 		{["-c", "-o-"], "Automatically issued by DUB, do not specify in package.json"},
-		{[ "-w", "-Wall", "-Werr"], `Use "buildRequirements" to control warning behavior`},
+		{["-w", "-Wall", "-Werr"], `Use "buildRequirements" to control warning behavior`},
 		{["-property", "-fproperty"], "Using this flag may break building of dependencies and it will probably be removed from DMD in the future"},
 		{["-wi"], `Use the "buildRequirements" field to control warning behavior`},
 		{["-d", "-de", "-dw"], `Use the "buildRequirements" field to control deprecation behavior`},
@@ -169,7 +169,7 @@
 		if (settings.requirements & BuildRequirements.disallowInlining) settings.options &= BuildOptions.inline;
 		if (settings.requirements & BuildRequirements.disallowOptimization) settings.options &= ~BuildOptions.optimize;
 		if (settings.requirements & BuildRequirements.requireBoundsCheck) settings.options &= ~BuildOptions.noBoundsChecks;
-		if (settings.requirements & BuildRequirements.requireContracts) settings.options &= ~BuildOptions.release;
+		if (settings.requirements & BuildRequirements.requireContracts) settings.options &= ~BuildOptions.releaseMode;
 		if (settings.requirements & BuildRequirements.relaxProperties) settings.options &= ~BuildOptions.property;
 	}
 }
@@ -378,8 +378,8 @@
 
 enum BuildOptions {
 	none = 0,                     /// Use compiler defaults
-	debug_ = 1<<0,                /// Compile in debug mode (enables contracts, -debug)
-	release = 1<<1,               /// Compile in release mode (disables assertions and bounds checks, -release)
+	debugMode = 1<<0,             /// Compile in debug mode (enables contracts, -debug)
+	releaseMode = 1<<1,           /// Compile in release mode (disables assertions and bounds checks, -release)
 	coverage = 1<<2,              /// Enable code coverage analysis (-cov)
 	debugInfo = 1<<3,             /// Enable symbolic debug information (-g)
 	debugInfoC = 1<<4,            /// Enable symbolic debug information in C compatible form (-gc)
diff --git a/source/dub/compilers/dmd.d b/source/dub/compilers/dmd.d
index da36a23..329e937 100644
--- a/source/dub/compilers/dmd.d
+++ b/source/dub/compilers/dmd.d
@@ -25,8 +25,8 @@
 
 class DmdCompiler : Compiler {
 	private static immutable s_options = [
-		tuple(BuildOptions.debug_, ["-debug"]),
-		tuple(BuildOptions.release, ["-release"]),
+		tuple(BuildOptions.debugMode, ["-debug"]),
+		tuple(BuildOptions.releaseMode, ["-release"]),
 		tuple(BuildOptions.coverage, ["-cov"]),
 		tuple(BuildOptions.debugInfo, ["-g"]),
 		tuple(BuildOptions.debugInfoC, ["-gc"]),
diff --git a/source/dub/compilers/gdc.d b/source/dub/compilers/gdc.d
index 7ee0cd0..039defb 100644
--- a/source/dub/compilers/gdc.d
+++ b/source/dub/compilers/gdc.d
@@ -25,8 +25,8 @@
 
 class GdcCompiler : Compiler {
 	private static immutable s_options = [
-		tuple(BuildOptions.debug_, ["-fdebug"]),
-		tuple(BuildOptions.release, ["-frelease"]),
+		tuple(BuildOptions.debugMode, ["-fdebug"]),
+		tuple(BuildOptions.releaseMode, ["-frelease"]),
 		tuple(BuildOptions.coverage, ["-fprofile-arcs", "-ftest-coverage"]),
 		tuple(BuildOptions.debugInfo, ["-g"]),
 		tuple(BuildOptions.debugInfoC, ["-g", "-fdebug-c"]),
diff --git a/source/dub/compilers/ldc.d b/source/dub/compilers/ldc.d
index daecbca..8563bb9 100644
--- a/source/dub/compilers/ldc.d
+++ b/source/dub/compilers/ldc.d
@@ -25,8 +25,8 @@
 
 class LdcCompiler : Compiler {
 	private static immutable s_options = [
-		tuple(BuildOptions.debug_, ["-d-debug"]),
-		tuple(BuildOptions.release, ["-release"]),
+		tuple(BuildOptions.debugMode, ["-d-debug"]),
+		tuple(BuildOptions.releaseMode, ["-release"]),
 		//tuple(BuildOptions.coverage, ["-?"]),
 		tuple(BuildOptions.debugInfo, ["-g"]),
 		tuple(BuildOptions.debugInfoC, ["-gc"]),
diff --git a/source/dub/generators/visuald.d b/source/dub/generators/visuald.d
index 5a4dad1..c5418b4 100644
--- a/source/dub/generators/visuald.d
+++ b/source/dub/generators/visuald.d
@@ -330,7 +330,7 @@
 				ret.formattedWrite("    <symdebug>%s</symdebug>\n", buildsettings.options & BuildOptions.debugInfo ? "1" : "0");
 				ret.formattedWrite("    <optimize>%s</optimize>\n", buildsettings.options & BuildOptions.optimize ? "1" : "0");
 				ret.formattedWrite("    <useInline>%s</useInline>\n", buildsettings.options & BuildOptions.inline ? "1" : "0");
-				ret.formattedWrite("    <release>%s</release>\n", buildsettings.options & BuildOptions.release ? "1" : "0");
+				ret.formattedWrite("    <release>%s</release>\n", buildsettings.options & BuildOptions.releaseMode ? "1" : "0");
 
 				// Lib or exe?
 				enum 
diff --git a/source/dub/package_.d b/source/dub/package_.d
index a4917d1..e6595cd 100644
--- a/source/dub/package_.d
+++ b/source/dub/package_.d
@@ -216,14 +216,14 @@
 			with(BuildOptions) switch (build_type) {
 				default: throw new Exception(format("Unknown build type for %s: '%s'", this.name, build_type));
 				case "plain": break;
-				case "debug": settings.addOptions(debug_, debugInfo); break;
-				case "release": settings.addOptions(release, optimize, inline); break;
-				case "unittest": settings.addOptions(unittests, debug_, debugInfo); break;
+				case "debug": settings.addOptions(debugMode, debugInfo); break;
+				case "release": settings.addOptions(releaseMode, optimize, inline); break;
+				case "unittest": settings.addOptions(unittests, debugMode, debugInfo); break;
 				case "docs": settings.addOptions(syntaxOnly); settings.addDFlags("-c", "-Dddocs"); break;
 				case "ddox": settings.addOptions(syntaxOnly); settings.addDFlags("-c", "-Df__dummy.html", "-Xfdocs.json"); break;
 				case "profile": settings.addOptions(profile, optimize, inline, debugInfo); break;
 				case "cov": settings.addOptions(coverage, debugInfo); break;
-				case "unittest-cov": settings.addOptions(unittests, coverage, debug_, debugInfo); break;
+				case "unittest-cov": settings.addOptions(unittests, coverage, debugMode, debugInfo); break;
 			}
 		}
 	}