diff --git a/source/dub/compilers/compiler.d b/source/dub/compilers/compiler.d
index 06d7831..9dde323 100644
--- a/source/dub/compilers/compiler.d
+++ b/source/dub/compilers/compiler.d
@@ -175,7 +175,7 @@
 
 	version (Posix) {
 		try {
-			auto pkgconfig_bin = "pkg-config";
+			enum pkgconfig_bin = "pkg-config";
 			string[] pkgconfig_libs;
 			foreach (lib; settings.libs)
 				if (execute([pkgconfig_bin, "--exists", "lib"~lib]).status == 0)
@@ -184,7 +184,7 @@
 			logDiagnostic("Using pkg-config to resolve library flags for %s.", pkgconfig_libs.map!(l => "lib"~l).array.join(", "));
 
 			if (pkgconfig_libs.length) {
-				auto libflags = execute(["pkg-config", "--libs"] ~ pkgconfig_libs.map!(l => "lib"~l)().array());
+				auto libflags = execute([pkgconfig_bin, "--libs"] ~ pkgconfig_libs.map!(l => "lib"~l)().array());
 				enforce(libflags.status == 0, format("pkg-config exited with error code %s: %s", libflags.status, libflags.output));
 				foreach (f; libflags.output.split()) {
 					if (f.startsWith("-Wl,")) settings.addLFlags(f[4 .. $].split(","));
@@ -226,11 +226,11 @@
 	{
 		int status;
 		if (output_callback) {
-			auto result = execute(args);
+			auto result = executeShell(escapeShellCommand(args));
 			output_callback(result.status, result.output);
 			status = result.status;
 		} else {
-			auto compiler_pid = spawnProcess(args);
+			auto compiler_pid = spawnShell(escapeShellCommand(args));
 			status = compiler_pid.wait();
 		}
 		enforce(status == 0, args[0] ~ " failed with exit code "~to!string(status));
diff --git a/source/dub/compilers/dmd.d b/source/dub/compilers/dmd.d
index bf56aae..43bec23 100644
--- a/source/dub/compilers/dmd.d
+++ b/source/dub/compilers/dmd.d
@@ -67,7 +67,7 @@
 		}
 		settings.addDFlags(arch_flags);
 
-		auto result = execute(compiler_binary ~ arch_flags ~ ["-quiet", "-run", fil.toNativeString()]);
+		auto result = executeShell(escapeShellCommand(compiler_binary ~ arch_flags ~ ["-quiet", "-run", fil.toNativeString()]));
 		enforce(result.status == 0, format("Failed to invoke the compiler %s to determine the build platform: %s",
 			compiler_binary, result.output));
 
diff --git a/source/dub/compilers/gdc.d b/source/dub/compilers/gdc.d
index 56952b3..ac150bb 100644
--- a/source/dub/compilers/gdc.d
+++ b/source/dub/compilers/gdc.d
@@ -67,7 +67,7 @@
 		}
 		settings.addDFlags(arch_flags);
 
-		auto compiler_result = execute(compiler_binary ~ arch_flags ~ ["-o", (getTempDir()~"dub_platform_probe").toNativeString(), fil.toNativeString()]);
+		auto compiler_result = executeShell(escapeShellCommand(compiler_binary ~ arch_flags ~ ["-o", (getTempDir()~"dub_platform_probe").toNativeString(), fil.toNativeString()]));
 		enforce(compiler_result.status == 0, format("Failed to invoke the compiler %s to determine the build platform: %s",
 			compiler_binary, compiler_result.output));
 		auto result = execute([(getTempDir()~"dub_platform_probe").toNativeString()]);
diff --git a/source/dub/package_.d b/source/dub/package_.d
index fa17995..d73e8d3 100644
--- a/source/dub/package_.d
+++ b/source/dub/package_.d
@@ -892,7 +892,7 @@
 	auto git_dir_param = "--git-dir=" ~ git_dir.toNativeString();
 
 	static string exec(scope string[] params...) {
-		auto ret = execute(params);
+		auto ret = executeShell(escapeShellCommand(params));
 		if (ret.status == 0) return ret.output.strip;
 		logDebug("'%s' failed with exit code %s: %s", params.join(" "), ret.status, ret.output.strip);
 		return null;