diff --git a/bitcoin-qt.pro b/bitcoin-qt.pro
index 055fecbf..ae4ef79c 100644
--- a/bitcoin-qt.pro
+++ b/bitcoin-qt.pro
@@ -83,7 +83,7 @@ contains(BITCOIN_NEED_QT_PLUGINS, 1) {
 # regenerate src/build.h
 !windows || contains(USE_BUILD_INFO, 1) {
     genbuild.depends = FORCE
-    genbuild.commands = cd $$PWD; share/genbuild.sh $$OUT_PWD/build/build.h
+    genbuild.commands = cd $$PWD; /bin/sh share/genbuild.sh $$OUT_PWD/build/build.h
     genbuild.target = $$OUT_PWD/build/build.h
     PRE_TARGETDEPS += $$OUT_PWD/build/build.h
     QMAKE_EXTRA_TARGETS += genbuild
diff --git a/src/makefile.linux-mingw b/src/makefile.linux-mingw
index 1df1e28f..61b38a66 100644
--- a/src/makefile.linux-mingw
+++ b/src/makefile.linux-mingw
@@ -70,7 +70,7 @@ OBJS= \
 all: bitcoind.exe
 
 obj/build.h: FORCE
-	../share/genbuild.sh obj/build.h
+	/bin/sh ../share/genbuild.sh obj/build.h
 version.cpp: obj/build.h
 DEFS += -DHAVE_BUILD_INFO
 
diff --git a/src/makefile.osx b/src/makefile.osx
index c927330c..227756f2 100644
--- a/src/makefile.osx
+++ b/src/makefile.osx
@@ -107,7 +107,7 @@ all: bitcoind
 -include obj-test/*.P
 
 obj/build.h: FORCE
-	../share/genbuild.sh obj/build.h
+	/bin/sh ../share/genbuild.sh obj/build.h
 version.cpp: obj/build.h
 DEFS += -DHAVE_BUILD_INFO
 
diff --git a/src/makefile.unix b/src/makefile.unix
index b1cc89d0..04e17866 100644
--- a/src/makefile.unix
+++ b/src/makefile.unix
@@ -119,7 +119,7 @@ all: bitcoind
 -include obj-test/*.P
 
 obj/build.h: FORCE
-	../share/genbuild.sh obj/build.h
+	/bin/sh ../share/genbuild.sh obj/build.h
 version.cpp: obj/build.h
 DEFS += -DHAVE_BUILD_INFO